Lubricator



Jan. 15', 1935. l.1. RBATTLE 1,988,152

LUBRICAVTOR Fi`led June 26, 1929 2 Sheets-Sheet l Q Ei l l A j l., /1

j FIG. Q l Flai 3Q www 10 FJ@ z 9 L flmlmmm lg y V26 J. R. BATTLE Jan. 15, 1935.

LUBRICATOR Filed Jun 26, 1929 2 Sheets-Sheet 2 jfl-1G10- Patented Jan. 15, 1935 UNITED STATE- s PATENT orsi-,ca

John R. Battle, Ardmore, Pa., assignor-to Gun-Fil; Corporation, a corporation of Delaware Application June. 26, 1929, seriaiivaevaaoo v 4 claims. (c1. 1er- 45) My.v invention relates particularly to that class inY accordance. with my; invention; Fig.y 2. isa. of lubricators in which the lubricant contained central verticallongitudinalsectionalview.of. the.y therein is extruded therefrom by a spring-actulubricator;A shown in Fig. Ltakenon the line 2.-'2'; ated` piston or follower serving as a plunger arin said ligure, the cap. of the lubricator, shown4 y5:1 ranged to be maintainedlunder constantly eiectinA Figures 1 and.. 2, being disposed inits. upper- :1;

ed pressure tending to` compress said lubricant to mostV position; Fig.: 3. is. a Central. verticalY limsi.- force it through the outlet port, andl is especially tudinal sectional view similarto view4 2j but show; directed to. means for regulating the. pressure. ing the` cap` adjusted downwardly to decrease: ofr the spring which actuates said plunger. the. capacity. offthey container.;and;tol also 10. The principal objectsy of` invention are to the; dynamicv effect of the,` pistonfactuating;l 1o provide a lubricator with readilyv accessible means spring; Fig.-i is a central Vertical longitudinal conveniently 'adjustable to vary the pressure sectional4 view. Similar tof Eig.3.but Showing. the. tending to expell the lubricant therein and conplunger and,vr its valve plug. inP their lowermost sequently tovary the rateofflow.. of lsaid lubricant positions wherein the contents ot .the container 1d. therefrom. has been exhausted and consequently empty.;,15-

Other objects of' my invention are, to provide Fig. 5` isa perspective view of, a; spacing ring, or; alubricator having apiston controlled valve with ferrule surroundingv the plunger, and arranged to., means adjustable to vary the` capacity ofv thev limit its-upward movementwithinthe container; lubricant contained and consequently not only Fig. 6; is aperspective, View of the washer 0.1'. fplto vary. the length of the. piston stroke but also lower plate. which ser-ves as a backing for, the; 2o

to vary the leadof the valvewith respect to. the piston leather. cup; Fig. '7 isa perspective view inletzand. outlet. ports whichL it. controls. of; the leather cup oLfthe piston; Figc. 8 is a per,-V

Further objects of my invention are. to provide, spective view of a Spanner nut whichis arranged a lubricator with means for varyingxthe. relation tosupport the leather cup of `the, piston against.

2l. or' the valve with respect to` the-piston s o that the ybaclring plateY or. washer: shown in Fig. 6; Fig. 2 5.

the lead ot thel valvel plugl with respect to the 9 is aside. elevationalview ofthe valve-plug; and portsfwhich it controls may be yadjusted indef, its stem which is carried by the, plunger.; pendently oiV the adjustedposition of the plunger. l()l is a side elevational viewv of; a lubricatorein: Myy invention contemplates such an, arrange-A bodying a modification of; the lubricator shown an ment of the associated parts that when a gang in, Figures-l to iinclusivgflig. 1 1v is a,r central 3Q of such lubricators areconnectedain a central vertical longitudinal sectional view of the lubrifeed system with a supply reservoir under prescatorjas. showngin Fig. l() with the adjustable sure they may be relatively adjusted to control cap shown adjusted to its uppermost working the flow of lubricant to adequately supply'bearf positi01.Eig v1,2 is a central vertial-r lonxgitudinalI 35 ings of'y relativelydiierent nature., such,.for in-V sectional view of the lubricator shown inv Figs. 35 stance, as bearings which` are loose, short, or 10 and v1 .1v but showingthe cap` adjusted to its rapid moving as distinguished from those bearlowermost working: QQSILQQ; 13 iSv 2,. Side ings which are tight, long, or substantially still elevational View of alubricator embodying another 0r Slow movinsmodificati@ of my nvensnl Fl- 14 is e Cnifel.

4a Specifically stated, theformof my inventionas vertical longitudinal sectional view of the lubri'- 40 hereinafter described comprises` a container pro- Ycater.shown in Fig; 13 showing the can adjusted vided withinlet'and outlet ports'having aplunger to itsuppermost workingposition; and Fig. 15 forming a piston carrying avalve adaptedtocom is a central 'verticali longitudinal sectional View trol said ports andarranged to be actuated bya of the lubricator lshown in Fig. 14 showing the 4.5 spring within said container, anda cap adjustable cap adjusted to its lowermost working. position'. 45 axially on. said container arranged to vary the 1n said gures thelubricatorbodypr container contents of saidl container andl to vary. the'dy-v l includes the chamber 2, outletport vg3ljlavi'nggthe namio effect of said spring` and the consequent broadened mouth 4- in the threaded'nipple' v5v by movement/of the valve plug in theport which it which the lubricator is attached. to a bearing to lo controls. f be lubricated and the inlet port 6, `.w`lhi 'ch con.' 50

My invention also includesall:y ofv the various nects the port 3 with the threaded soclet .Tin novel features of constructionand arrangement whichthe intale fittinggis engaged. as hereinafter more denitelyf specied. The intake fitting. 9 113W b-.e 0f 31W desired and m the accmnnanyinsdrawings, Figure 1 .is a well known @Qnirulm b3. which e lubricant H5 dde elevational view. of alubricator constructed filling gun or other lfitting may be'clonnecte'dwith 5g the lubricator for the purpose of filling the chamber 2 with lubricant and may be provided with the usual check valve 8 to prevent the escape of lubricant from the chamber 2 when the filling gun is withdrawn.

The lubricator body or container 1 is provided with the closure cap 10 having the internally threaded flange 11 arranged to engage the screw threads 12 exteriorly-disposed adjacent the free open end of the lubricator body 1 and extending for a considerable distance toward or approximately to the medial region of the lubricator body or container 1, such closure being provided with the boss 13 surrounding a central aperture 15 through which the plunger 16 carrying the pis.- ton structure is arranged to reciprocate.

Said plunger 16 may be of any convenient form, being shown cylindrical in theillustrations and has the reduced inner end 1'7 upon which vis mounted the piston structure comprising the inverted" cupped leather '19' disposed between the follower plate 20 and the Spanner nut 21 which is internally threaded to engage the threads 22 and the reduced inner end of the plunger 16.

The'ilange 11 of the closure cap 10 is of considerable lengthand is internally threaded to engage the threads12 on the lubricator body or container so as to provide for a wide range of adjustment of the cap 10 on said container whereby-the cubical vcontents of the lubricatormay havea wide range of variation and the dynamic effect of the spring may be similarly varied.

Saidr cap 10 is arranged to be held in its adjusted position on the lubricator body or container1 by the jam-nut 23, which is arranged to be independently rotated Vto jam the edge of the flange 11 of the cap 10 land hold it in adjusted position on the lubricator body or container 1.

' The plunger 176 is provided with an axial bore 18 into which the stem' 25 of the valve plug 26 is adjustably slipped and may be secured by the set-screw 27, as shown' in Fig. 2. Said valve-plug 26 may be of anydesi'red form to restrict the flow of lubricant through the outlet port 3 and to controlftheflow of`lubricantentering through the'A inlet port 6, the valve-plug 2li-hereinafter shown, however, being formed of square threads providing a helical passageway between the threads and thebore of the'outlet port 3 through which the lubricant is forced by the piston structure which is actuated by Vthe spring 29, preferablyV of conical formation, andthe dynamic effect of which may be varied by the adjustment of the closure cap 10 upon the lubricator body or container 1.V f

As will be obvious, when the closure cap 10 is adjusted to its uppermost position, such as shown in Fig. 2, thevpiston structure must be limited in its upper movement to prevent the cupped leather 19 from riding abovethe upper edge of the lubricator body 1, and therefore the sleeve 30 is provided surrounding the plunger 16 and serving as a spacer for limiting the upper or retracted movementof the piston structure. This spacer is removable and replaceable and obviously may be replaced by spacers of different lengths to vary theramount of compression of the spring 29, and is readily slipped over the stem 16 when the cup 10 is removed.

The lubricator shown in Figs. 10, 11 and 12 comprises the body 31 having the outlet port 33 provided with the broadened mouth 34 in the threaded nipple 35 by which the lubricator is attached to a bearing to be lubricated, and has the "inlet port 36 which connects the port 33 with the threaded socket 37 in which the intake fitting 39 is engaged.

The lubricator body 3l is provided with the closure cap 40 having the internally threaded flange 4l arranged to engage the screw threads 42 exteriorly disposed upon the lubricator body 31, such closure providing the chamber 32 arranged to contain lubricant having the central aperture 45 through which the plunger `46v4 carrying the piston structure 43 is arrangedto reciprocate, said piston structure 43 being similar to the-piston structure shown in Figs. 2, 5, 6, 7 and 8 inclusive.

The plunger 46 also carries the valve plug 56 whose stem may be adjustably engaged therewith and movable with the piston to vary the length of the outlet passageway or port 33 through which the lubricant may be forced in accordance with the position of the piston and the consequent gradual reducing force of the spring 59 within the cap 40, which may be adjusted up and down on the' lubricator body 31 and secured in any adjusted positionby the jam-nut 53. In this form of my invention, the piston structure 43 may be limited by the spacing sleeve 60 or said sleeve may be omitted as desired.

The form of lubricator shown in Figs. 13, ,14 and 15 comprises a lubricator body or container 61, and includes' the chamber62, outlet port 63 and the broadened mouth 64 inI the threaded nipple 65 through which the lubricator may be attached to a bearing to be lubricated. Said outlet port 63 is connected by the inlet port 66 with the threaded socket 67 to which the fitting 69 is engaged.

The lubricator body or container 6l is provided with the closure cap 70 having the externally threaded flange 71 arranged to engage the screw threads 72 internally disposed adjacent tothe free open' end of the lubricator body 61 and. extending to the bottom of the chamber 62, such closure being provided with the aperture 'I5 through which the plunger '76, carrying the piston structure 73 and the valve plug '77 is arrangedV to reciprocate, the lubricator body 61 and cap 'l0 being readily secured in adjusted position by the jam-nut 79. In this form of my invention, the floor of the lubricator body 61 comprises a conical projection whichserves as an abutment for the piston structure '73 so as to' prevent it from riding below the lower edge of the flange '71 of the closure cap 70.

My invention is particularly advantageous in that where a number of such lubricators are connected to a central feed system to lubricate different bearings wherein theI bearing conditions differ onefrom the other and require more or less lubricant orforce to feed the lubricant, such as loose or tight bearings or slow. or rapid moving bearings, it being obvious that the cap of the lubricator may be. adjusted to cause greater or less pressure of the actuating spring upon the piston which forces the lubricant from the lubricator. Furthermore, the contents of the lubricant container may be also varied in accordance with the consistency of the lubricant; yfor instance, if said lubricant is light, soft or fluffy in character, the capacity of said container may be increased accordingly, and with said` increase in capacity of the container, the valve is automatically adjusted to control the flow of said lubricant through the outlet port. f

Having thus described my invention, I'claim: 1.` Alubricator comprisinga lubricant container having inlet'and outlet ports, a plunger mounted for reciprocation in said container by which lubricant may be forced through said outlet port, a port controlling valve carried by said plunger,

and arranged to control both said inlet and outlet ports, means tending to .actuate said plunger, means adjustable to vary the dynamic effect of said plunger actuating means, and a sleeve carried by said plunger slidable over said stem and serving as a spacer .arranged to limit the retracted movement of said plunger.

2. A lubricator comprising a lubricant container having inlet and outlet ports, a plunger mounted for reciprocation in said container by which lubricant may be forced through said outlet port, a port controlling valve carried by said plunger, and arranged to control both said inlet and outlet ports, means tending to actuate said plunger, means adjustable to vary the dynamic effect of said plunger actuating means, and spacing means cooperative with said adjustable means serving to limit the retracted movement of said plunger.

3. A lubricator comprising a lubricant container having a valve chamber provided with an outlet port and an inlet port in direct communication with said outlet port, a plunger in said container by which lubricant may be forced through said outlet port from said container, a port controlling valve axially movable in said outlet port and extending across the orifice of said inlet port and arranged to control the flow of lubricant through both said outlet and inlet ports, and means whereby the relation between said plunger and valve may be variably adjusted to vary the lead of said valve with respect to the inlet port.

4. A lubricator comprising a lubricant container having a valve chamber provided with relatively intersecting inlet and outlet ports, a plunger in said container by which lubricant may be forced through said outlet port, a port controlling valve mounted to reciprocate in said outlet port and across the orifice of said inlet port and arranged to control the ilow of lubricant through both said outlet and inlet ports, means whereby said valve may be secured to said plunger at relatively different distances therefrom to vary the lead of said valve with respect to the inlet port, and means adjustable to vary the force tending to actuate said plunger.

JOHN R. BATTLE. 

